Use of Reactive Tracers To Determine Ambient OH Radical Concentrations: Application within the Indoor Environment

Use of Reactive Tracers To Determine Ambient OH Radical Concentrations: Application within the Indoor Environment

The hydroxyl radical (OH) plays a key role in determining indoor air quality. However, its highly reactive nature and low concentration indoors impede direct analysis. This paper describes the techniques used to indirectly quantify indoor OH, including the development of a new method based on the in...

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Bibliographic Details
Published in:Environmental science & technology Vol. 44; no. 16; pp. 6269 - 6274
Main Authors: White, Iain R, Martin, Damien, Muñoz, M. Paz, Petersson, Fredrik K, Henshaw, Stephen J, Nickless, Graham, Lloyd-Jones, Guy C, Clemitshaw, Kevin. C, Shallcross, Dudley E
Format: Journal Article
Language:English
Published: Washington, DC American Chemical Society 15-08-2010
Subjects:
Air Pollution, Indoor - analysis
Applied sciences
Butadienes - chemistry
Carbon Monoxide - analysis
Chemical compounds
Chromatography
Environmental Measurements Methods
Environmental Monitoring - methods
Environmental science
Exact sciences and technology
Hemiterpenes - chemistry
Humidity
Hydroxyl Radical - analysis
Indoor air quality
Ozone - analysis
Pentanes - chemistry
Pollution
Spectrum analysis
Temperature
Time Factors
Trace elements
Volatile Organic Compounds - analysis
Indoor pollution
Hydroxyl radicals
Gas chromatography
Air quality
Mass spectrometry
Tracers
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Summary:The hydroxyl radical (OH) plays a key role in determining indoor air quality. However, its highly reactive nature and low concentration indoors impede direct analysis. This paper describes the techniques used to indirectly quantify indoor OH, including the development of a new method based on the instantaneous release of chemical tracers into the air. This method was used to detect ambient OH in two indoor seminar rooms following tracer detection by gas chromatography-mass spectrometry (GCMS). The results from these tests add to the small number of experiments that have measured indoor OH which are discussed with regard to future directions within air quality research.
Bibliography:ObjectType-Article-1
SourceType-Scholarly Journals-1
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content type line 23
ISSN:0013-936X
1520-5851
DOI:10.1021/es901699a